APA (7th ed.) Citation

Tittel, E., & Robbins, M. (1994). E-mail essentials: [everything you need to know]. AP Professional.

Chicago Style (17th ed.) Citation

Tittel, Ed, and Magaret Robbins. E-mail Essentials: [everything You Need to Know]. Boston u.a: AP Professional, 1994.

MLA (9th ed.) Citation

Tittel, Ed, and Magaret Robbins. E-mail Essentials: [everything You Need to Know]. AP Professional, 1994.